Automatic lock slider



D. MARINSKY AUTOMATIC LOCK SLIDER Sept. 19, I944.

' .Filed'Oct. 8. 1943 I ll INVENTOR flw/s'Mm/Nsw M, .VIYAORNEY PatentedSept. 19, 1944 Davis Marinsky, Bronx. N. Y.. assignor of one- Y halt toLouis E. Morin, Bronx, N. Y.

Application mm s. 1943, Serial No. 505,450

12 Claims. icl. 24-2055) 1 the upper surface oi the cross head 18substan- This invention relates to sliders for separable fastenerstringers. More particularly, the invention relates to sliders forfasteners of the kind described employing means for automaticallyretaining the slider against movement on the stringers, the means beingin the form of a pivoted lock element of substantial T-formation andincluding an extending spring finger, depressed by the linger piece orpull to move the cross head of the lock elementintoinoperative positionin the operation of moving the slider along the stringers to uncouple orseparate the stringers.

The novel features of the invention will be best understood from thefollowing description when taken together with the accompanying drawing,in which certain embodiments of the invention are disclosed, and inwhich the separate parts are designated by suitable reference charactersin each of'the views; and in which:

Fig. 1 is a perspective view of a slider made according to my invention,showing the slider v detached from the stringers.

Fig. '2 is a side and sectional view of the slider diagrammaticallyillustrating the same in locked position; and

Fig. 3 is a view similar to Fig. 2, slider parts in the unlockedposition.

The slider comprises top and .bottom walls I0 and ii, spaced apart andcoupled at the wide end of the slider by a connecting web l2, and theside edges of the walls l0 and II are provided with inturned flanges i3.Arranged centrally and longitudinally of the wall I0 is an elongatedloop Id for attachment of a pull of any type and kind, a part of whichis'indicated atli in the accompanying drawing.

The pull attaching loop at the narrow or contracted end of the sliderbody, and where it joins showing the tially in alinement with thecorresponding surface of the wall It so'that the lockelement i'orms moreor less of an-extension or this wall, and its outer edge 25 ispreferably rounded, as clearly seen in Fig. l.

The upper edge of the arm 28 is curved downwardly, as seen at 26, toform a neat and finished appearance at the contracted end oi the slider.The-upper rear surface of the arm 23 is recessedtoreceive one end of along spring arm or finger 11, which is secured inpositionby a screw orother fastening, as at 28, note Fig. l. The spring finger 21 extendslongitudinally and beneath the loop i4, and its inner end 29 normallyrests upon the upper surface of the wall l0, so as to support theelement i'i in the operative position shown in Fig. 2 of the drawing.

It will appear that'the' projections or pins i9, 20 have roundedcorners, so that in moving the slider along the stringers tocouplethesame,

that is to say, when movingin the direction of the arrow-30, Fig. 2, thelock element will ratchet over the scoops by reason of the lighttensional engagement of the lock element with the scoops through themedium of the .spring finger 21. However, in the operation of movingthe. slider to separate the stringers, that is to say, in the directionor the arrow 8|, Fig. 3, the pull it will ride up on the springflngerfl, and depress this finger adjacent the pivot pin 24, causing thecross head to be moved into raised position, thus disengaging the pinsl8 and 20 from the links or scoops. When the slider is at rest, .thelock element will at all times assume a locked position.

the wall 10, is provided with an aperture 18. At

i1 is shown the lock element of the slider. This element issubstantially oi T-for'mation, and

comprises a cross head'l8 extending substantially the full width of thechannel portion of the slider.

cent scoops on both stringers, as is diagrammatically illustrated inFigs. 2 and, 3 of the drawing,

, in which the scoops 2| are on one stringer, and

the scoops 22 on the companion stringer.

Oilset slightly from the other or top side of the cross head it, is anextending leg or arm 23 o! a lock element. This element is arranged inthe aperture 18 of the loop l4, and is pivoted therein by a pivot pin24. It will be apparentthat the oflsetting oithe leg or arm Ildisposesthus retaining the stringers against accidental separation. t

The automatic lock element of the slider may also be described as alever having a long flexible end arranged upon the slider wall, and ashort rigid end terminating in a cross head disposed beyond the end ofthe slider wall. The flexible end has sui'ilcient spring properties tomaintain the cross head end of the lever or the projections thereoi. inoperative position, while at the same time, presenting a bowed portionadjacent the pivot or thelever adapted to be depressed by the pullinthrowing or swinging the cross head end of the lever into itsinoperative As above stated, the cross head of the lock r-elementcomprises more or less of an extension to the top wall of the slider,and thus might be said to comprise a pivoted or swinging wall portion.This structural arrangement, in addition to providing a simple automaticlock slider structime also produces a lock slider which will be freefrom jamming, particularly in that the lock ele- I ment is readilyaccessible externally of and beyond the limits of the slider body,contrary inthis respect to lock elements which are housed within theslider body and inaccessible to the said element operatively eng gingthe slider body to tensionally support the lock element in operauser inthe event that the same becomes jammed foranyreason whatever.

Furthermore,- the simplicity of the constructive position, and meansmovable longitudinally of the slider body and operativelyvengaging. saidspring finger to move the lock element into inoperative position.

5. In sliders for separable fastener stringers comprising a slider bodyhaving spaced chantion as a whole simplifies the assemblage of theparts, in that the spring finger 21 can be coupled with the cross headbody proper, and then the complete unit inserted into the aperture ls,after which the pivot pin 24 can be placed inposition.

Having fully-described my invention, what I claim as new and desire tosecure by Letters Patent is: l. A lock slider for separable fastenerstringers, comprising a channelled slider body having spaced wallscontracting at the narrow end of said body, an elongated loop on onewall of said body, alock member of substantially T-shaped formation, thecross head of said member being arranged beyond the limits of said wallof the slider, the leg of said member extending into an aperture in theloop of said slider wall, means for pivoting the leg of said member tosaid loop,

a spring finger extending from the leg of said member longitudinally ofand beneath said loop, link engaging projections on the cross head ofsaid member for retaining the slider against movement longitudinally of'fastener stringers, and said spring finger normally supporting theprojections of the lock member in operative position. a

2. A lock slider for separable fastener stringers,

comprising a channelled slider body having spaced walls contracting atthe narrow end of said body, an elongated loop on one wall of said body,a lock member of substantially T-shaped formation, the cross head ofsaid member being arranged beyond the limits of said wall of theslider,- the leg 01' said member extending'into an for pivoting the legof said member to said loop.

a spring flnger'extending from the leg of said,- member longitudinallyof and beneath said loop.

link engaging projections on the cross head of said member for retainingthe slider against movement longitudinally of .fastener stringers, saidspring finger normally supporting the projectionslof the lock member inoperative position, and means movable longitudinally of the loop of saidslider to engage the spring finger in raising the cross head to move theprojections thereof out of stringers.

engagement with the llnksof the 3; The combination with a slider ofseparable fastener stringers having wide and contracted end portions, oranautomatic lock element. means- I pivotally supporting said element tothecontracted end of the slider, said element having a arranged beyondthe -limits of the slider body, said part having a lock pin for. engaing the links of a fastener stringer, and a spring finger on saidelement operatively en agi g the slider body to tensionally support thelock elementinoperative position.- a a 4. The combination with a slideroi'separable fastener stringers having wide and contracted end portions,-of an automatic lock element, means pivotally supporting said elementto the contracted end of the slider, said element having a aperture inthe loop of said slider wall, means nelled walls contracted at one endportion of the body, the combination with one wall of the slider body,of a member forming an extension to one wall of the slider at thecontracted end thereof, means centrally of said member and extendingonto said wall for pivotally pporting the member in connection with saidwall, said member having a projecting, lock part on the inner surfacethereof, and tensional means normally supporting said member with thelock part thereof within the path of the channel portion or said wall ofthe slider.

6. In sliders for separable fastener stringers comprising a slider bodyhaving spaced channeled walls contracted at one end portion of ,thebody,

the combination with onewall of the slider body, of a member forming anexte'nsion'to one wall of the slider at the contracted end thereof,means.

'said finger to raise the lock part out of the path of the channel ofsaid slider wall.

7. The combination with a slider having wide and contracted endportions, of an automatic lock element, said element comprising a leverlike member pivoted to the slider adjacent the contracted end thereof,one short end of the lever being rigid and extending beyond the limits0! the contracted end of the slider, said end having a projectingpart onthe under surface thereof,

' and the othere'nd of said lever being long and flexible and extendingonto and engaging the v body portion of the slider adjacent the wide endportion thereof.

8. The combination with a slider, having wide and contracted endportions, of an automatic lock element; said element comprising a leverelongated spring finger extending onto and enlike member pivoted to theslider adjacent the contracted end thereof, one short end of the leverbeing rigid andsubstantially of r -formation to provide an outer crosshead end substantially e ual inwidth to the width of the contracted endof the slider, said-cross head having on the un-.

der surface thereof a projecting lock part; and the other end of theleverbeing in the form of an gaging the body portion of the slider. a

9. In sliders for. separable fastener stringers, a channelled sliderbody defined by spaced walls having narrow and wide end portions, asupplemental wallfpart at and extending beyond the narrow end of onewall of said body, means inov-.

ably supporting the supplemental wall 'on said J wail of the sliderbody, meansfor supporting the supplemental wall normally part arrangedbeyond the limits of the slider body, said part'having a lock pin foreng ll the links of a fastener stringer, a spring finger ion inapproximate alinement with said wall of the slider body, a

projecting lock element on the supplemental wall extending in thedirection-of and forming a part for; one wallof said body and arrangedbe yond the limits of said wall and" in substantial.

alinem'ent therewith, means movably supporting the supplemental-wallpartupon said wall of the body wherebythe supplemental wall may beraised and lowered with respect to said wall, and said supplemental-wall'having a lock element projecting from the lower surface thereof inthe the supplemental wall part upon said wall of the body whereby thesupplemental wall may be raised and lowered with respect to said wall,said supplemental wall having a lock element projecting from the lowersurface thereof in the direction of and adapted to block the channelportion of the slider in'spaced relation to said wall therea of,saidsupplemental wall part having yieldable means extending onto saidwall of thelider, and

direction of and adapted to block the channel portion of the sliderinyspaced relation to said wall thereof.

means movably supported on said wall of the slideroperatively engagingsaid yieldable means for moving the supplemental wall part and its lockelement into inoperative position.

12. An automatic locking device for sliders of separable fasteners ofthe class described, said device comprising a bar. having a transverseaperture to form a pivotal support for said bar,

oneend of the bar having a wide cross head ofi- I set with respect toone surface of the bar, a pro- 11. The combination with a channelledslider body having spaced walls, of a supplemental wall part for onewall of said bodv and arranged beyond the limits 'of'saidwall and insubstantial alinement therewith, means movably supporting finger to thebar adjacent the aperture therein.

jecting' lock element on said cross head, an elongated spring finger atthe other end of said bar, and means for keying and securing the springDAVIS MARINSKY.

